Changes between Version 9 and Version 10 of Documentation/UserGuide/PreIndSim


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Timestamp:
2014-10-22T17:56:30+02:00 (10 years ago)
Author:
luyssaert
Comment:

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  • Documentation/UserGuide/PreIndSim

    v9 v10  
    1 === Setting up a coupled climate run for pre-industrial conditions ===  
     1=== Setting up a coupled climate run for pre-industrial times ===  
    22The page follows the workflow of [wiki:HowTo/CoupledDofoco] and [wiki:HowTo/SetupZoomEurope]. For the commands and actions consult those pages. On this page the settings are specified. 
    33 
    44The aim is to run an equilibrium simulation for the year 1750. Orchidee off-line line was used to simulate the surface area in 1750 and now we want to know how the climate looked liked for such a surface. The coupled run is zoomed over Europe, nudged at the edges of Europe uses the CWRR hydrology and all the DOFOCO features. 
    55 
    6 === THE BOUNDARY CONDITIONS === 
     6=== The boundary conditions === 
    77LMDZOR was installed twice to avoid any confusion between the boundary files of the pre-industrial and the present day simulations. Hence, one installation will be used for the pre-industrial runs (and will thus use the pre-industrial boundary conditions), the other installation is to be used for present day simulations. For both sets of simulations an AMIP set-up was chosen. This set-up comes with acceptable BC between 1870 and 2100 which allows us to focus on the climate and reduce issues with sea surface temperature, see ice and aerosol concentrations. So copy the an amip config.card to define the job that will create the BC 
    88{{{ 
    … …  
    2020DateEnd=1899-12-31 
    2121}}} 
    22 There is no need to manually create a directory for this experiment. When you use ./util/ins_job the script will create a directory with a copy of the config.card as well as the COMP, DRIVER and PARAM folder. Next, some more settings need to be changed and/or confirmed before launching the job. The following changes to were made to the COMP/lmdz.card: 
     22There is no need to manually create a directory for this experiment. When you use ./util/ins_job the script will create a directory with a copy of the config.card as well as the COMP, DRIVER and PARAM folder. Note that many of the data files that are used to describe the boundary conditions can be found at  
     23{{{ 
     24/ccc/work/cont003/dsm/p86ipsl/IGCM/INIT/ATM/LMDZOR/ 
     25}}} 
     26Following, more settings need to be changed and/or confirmed before launching the job. The following changes to were made to the COMP/lmdz.card: 
    2327(1) Specify in the list of parameter files that the BC should be based on the predefined pre-industrial settings. These settings contain the TOA solar incoming radiation, atmospheric CO2, CH4 and N2O among other settings. Have a loop in PARAM/config.def_preind to get a better idea of these settings. 
    2428{{{   
    … …  
    3539}}} 
    3640 
    37 === THE PRE-INDUSTRIAL EXPERIMENT === 
     41=== The pre-industrial experiment === 
    3842 
    3943